Common barriers to maintaining an exercise routine include lack of time, motivation, resources, and knowledge about effective workouts. Busy schedules often make it challenging to fit in regular physical activity, while low motivation can lead to skipping sessions. Limited access to facilities or equipment can also deter individuals from exercising. Furthermore, lacking guidance on proper exercises can result in feelings of confusion or frustration. Identifying and addressing these barriers is crucial for fostering consistency and long-term adherence to fitness regimens.